P
US9447545B2ActiveUtilityPatentIndex 92

Absorbent tissue

Assignee: KIMBERLY CLARK COPriority: Jan 31, 2013Filed: Dec 8, 2015Granted: Sep 20, 2016
Est. expiryJan 31, 2033(~6.6 yrs left)· nominal 20-yr term from priority
Inventors:HERMANS MICHAEL ALANKOCH GRETCHEN SARAHTIRIMACCO MAURIZIOMCCORMICK ERIN ANN
D21H 27/005Y10T428/31986D21H 11/04D21H 27/007Y10T428/31971Y10T428/1303D21H 21/20
92
PatentIndex Score
13
Cited by
38
References
17
Claims

Abstract

The present disclosure offers an improvement in papermaking methods and products, by providing a tissue sheet and a method to obtain a tissue sheet, with improved absorbency at a given basis weight. Thus, by way of example, the present disclosure provides a single ply tissue sheet having a basis weight greater than about 50 gsm and a specific vertical absorbent capacity greater than about 6.0 g/g.

Claims

exact text as granted — not AI-modified
We claim: 
     
       1. A single-ply wet-laid tissue product having a geometric mean tensile (GMT) from about 2,200 to about 3,500 g/3″, a bone dry basis weight greater than about 60 grams per square meter (gsm) and a specific vertical absorbent capacity of 6.0 g/g or greater. 
     
     
       2. The tissue product of  claim 1  having a GM Slope from about 6.0 to about 8.0 kg. 
     
     
       3. The tissue product of  claim 1  having a Stiffness Index less than about 5.0. 
     
     
       4. The tissue product of  claim 1  having a MD Stretch greater than about 30 percent. 
     
     
       5. The tissue product of  claim 1  wherein the bone dry basis weight is from about 60 to about 70 gsm and a GMT from about 2,500 to about 3,000 g/3″. 
     
     
       6. The tissue product of  claim 1  having a sheet bulk from about 10 to about 12 cc/g. 
     
     
       7. The tissue product of  claim 1  spirally wound into a roll, the roll having a Roll Firmness from about 6.0 to about 8.0 mm. 
     
     
       8. The tissue product of  claim 1  wherein the tissue product is through-air dried. 
     
     
       9. The tissue product of  claim 8  wherein the tissue product is uncreped. 
     
     
       10. A single-ply wet-laid tissue product having a GMT from about 2,500 to about 2,750 g/3″, a basis weight from about 60 to about 70 gsm, a sheet bulk from about 10 to about 12 cc/g and a specific vertical absorbent capacity of 6.0 g/g or greater. 
     
     
       11. The tissue product of  claim 10  having a MD TEA greater than about 50 g*cm/cm2 and a GM Slope less than about 10.0 kg. 
     
     
       12. The tissue product of  claim 10  having a Stiffness Index less than about 5.0. 
     
     
       13. The tissue product of  claim 10  having a MD Stretch greater than about 30 percent. 
     
     
       14. The tissue product of  claim 10  spirally wound into a roll, the roll having a Roll Firmness from about 6.0 to about 8.0 mm. 
     
     
       15. The tissue product of  claim 10  having a basis weight from about 65 to about 70 gsm, a Stiffness Index less than about 5.0 and a specific vertical absorbent capacity from 6.0 to about 7.0 g/g. 
     
     
       16. The tissue product of  claim 10  wherein the tissue product is through-air dried. 
     
     
       17. The tissue product of  claim 16  wherein the tissue product is uncreped.

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